What if my data has more than one mode?

The calculator lists every value tied for the maximum frequency. A data set with two such values is bimodal; with three or more, multimodal.

What if every value is unique?

No value beats the others on frequency, so the mode is reported as None.

Which average should I use?

Mean is best for symmetric data with no extreme outliers. Median is more robust when the data is skewed. Mode is ideal for categorical data and discrete counts.

How is the median calculated when n is even?

It is the arithmetic mean of the two middle values after sorting, e.g. for 1, 3, 5, 7 the median is (3 + 5) / 2 = 4.

Can I paste numbers from a spreadsheet?

Yes. Comma-, space-, semicolon-, and newline-separated input all parse correctly; non-numeric tokens are skipped with a warning.

Mean Median Mode Calculator

Find mean, median, and mode of any list — handles unimodal, bimodal, and no-mode data sets.

Written by Golam Rabbani, Founder & Lead Engineer

This interactive tool requires JavaScript. Read the formula and worked example below; you can compute the result by hand.

How to use this mean median mode calculator

Type or paste your numbers, separated by commas, spaces, or newlines.
Press Calculate to compute the mean, median, and mode together.
Read the result panel — Mode lists every value tied for the highest frequency (×n shows how many times each occurs).
Use Copy to copy the result or Reset to clear inputs.

About this mean median mode calculator

Mean, median, and mode are the three classic measures of central tendency. Mean is the arithmetic average: Σx / n. Median is the middle value of the sorted list, or the average of the two middle values when n is even. Mode is the value (or values) that appears most often — a list can be unimodal (one mode), bimodal (two), multimodal (more), or have no mode at all when every value is unique.

Worked example. Enter 2, 4, 4, 4, 5, 5, 7, 9. Mean = (2 + 4 + 4 + 4 + 5 + 5 + 7 + 9) / 8 = 40 / 8 = 5. Sorted, the middle pair is positions 4 and 5 — both are 4 and 5 — so median = (4 + 5) / 2 = 4.5. The value 4 occurs three times, more than any other, so the mode is 4 (×3). Use mean when your data is roughly symmetric, median when it is skewed or has outliers, and mode when you want the most typical category in nominal or discrete data. The calculator runs locally in your browser.

FAQ

What if my data has more than one mode?: The calculator lists every value tied for the maximum frequency. A data set with two such values is bimodal; with three or more, multimodal.
What if every value is unique?: No value beats the others on frequency, so the mode is reported as None.
Which average should I use?: Mean is best for symmetric data with no extreme outliers. Median is more robust when the data is skewed. Mode is ideal for categorical data and discrete counts.
How is the median calculated when n is even?: It is the arithmetic mean of the two middle values after sorting, e.g. for 1, 3, 5, 7 the median is (3 + 5) / 2 = 4.
Can I paste numbers from a spreadsheet?: Yes. Comma-, space-, semicolon-, and newline-separated input all parse correctly; non-numeric tokens are skipped with a warning.